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Editorial Team
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Asked: 2026-06-15T23:25:03+00:00

I am trying to make a little JavaScript web app that I can use

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I am trying to make a little JavaScript web app that I can use to make templates for webpages I am going to make.(To speed up designing and stuff.)
But when doing this I want to make it update live while I am typing. I know it can be done with this, but I think it is a little messy. So i am trying to use the html5 output element instead, but i can’t make it compatible with text strings instead of only numbers.
The following only works with numbers:

<html>
    <body>
         <form oninput="x.value=parseInt(a.value)+parseInt(b.value)">
             <input type="range" name="a" value="50">
             <input type="number" name="b" value="50">
             <output name="x" for="a b"></output>
         </form>
    </body>
</html>

PS: i am a newbie in JS and it only needs to be compatible with FF.

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1 Answer

  1. Editorial Team

    Try this – DEMO

    <form oninput="xx.value=aa.value+bb.value">
    <input type="text" name="aa" value="hello">
    <input type="text" name="bb" value="world">
    <output name="xx" for="aa bb"></output>
</form>
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